The pair tracked the Imperialis to deep space, and Cha boarded the stolen yacht. In order to convince O-66 to give her the ship's control codes, Cha placed a pulse bomb in the droid's neck, and threatened to remotely detonate it. Persuaded to concede, O-66 transmitted the codes, allowing Cha to deactivate the escape pods and prevent the thief from eluding capture. However, Cha discovered the thief to be Lando Calrissian, a man with whom she was acquainted.[3]

Calrissian explained that the Imperialis was filled with Sith artifacts which were causing his team to turn on each other, and he convinced Cha to activate the yacht's auto-destruct sequence. Cha ordered O-66 to bring the Scimitar in to dock, but the droid's sensors indicated that the yacht was going to self-destruct, and refused. Cha reminded the droid about the bomb placed in its neck, but O-66 had partially reconstructed and revealed that the bomb was already deactivated. Bidding farewell to Cha, O-66 piloted the Scimitar away from the scene, leaving Cha to die.[4]

O-66 was programmed to protect and honor the Scimitar.[4] He knew a lot about the ship's operating systems and history. Chanath Cha regarded O-66 as tedious and beheaded the droid.[1] He was programmed to serve Emperor Palpatine and did not like to go against his master's orders.[3] Despite being decapitated, O-66 was still capable of functioning[1] and could even repair himself.[3] O-66 appreciated Chanath's ruthlessness but allowed her to underestimate him. After learning that she had installed a pulse bomb on him, he removed it. O-66 exacted a sort of revenge against Cha when he left her stranded in space after she activated the Imperialis's self-destruct mechanism. Claiming that blowing up the Imperialis would endanger the Scimitar, he took the opportunity to abandon Cha.[4]